I have been getting this error when trying to update my Fidelity accounts for about a week now. I can logon to the Fidelity website with no issues and other accounts update fine. I also tried to 'add a new account', and I'm also getting an error.
I searched this forum and the web, and I don't see it discussed recently as an ongoing issue.
I have Windows 11 Pro. I have already validated my version (R55.15, Build 27.1), that I have TLS 1.2 checked, and I also signed out of my Quicken account in Quicken then closed and reopened Quicken. No change.
Other ideas?